/* Copyright (C) 2017 The Android Open Source Project
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This file implements interfaces from the file jvmti.h. This implementation
* is licensed under the same terms as the file jvmti.h. The
* copyright and license information for the file jvmti.h follows.
*
* Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
#ifndef ART_OPENJDKJVMTI_TI_CLASS_LOADER_H_
#define ART_OPENJDKJVMTI_TI_CLASS_LOADER_H_
#include <string>
#include <jni.h>
#include "base/globals.h"
#include "base/mutex.h"
#include "jvmti.h"
#include "mirror/array.h"
namespace art {
class DexFile;
template <
class MirrorType>
class Handle;
template <
class MirrorType>
class ObjPtr;
class Thread;
}
// namespace art
namespace openjdkjvmti {
// Class that can redefine a single class's methods.
// TODO We should really make this be driven by an outside class so we can do multiple classes at
// the same time and have less required cleanup.
class ClassLoaderHelper {
public:
static bool AddToClassLoader(art::Thread* self,
art::Handle<art::mirror::ClassLoader> loader,
const art::DexFile* dex_file)
REQUIRES_SHARED(art::Locks::mutator_lock_);
// Finds a java.lang.DexFile object that is associated with the given ClassLoader. Each of these
// j.l.DexFile objects holds several art::DexFile*s in it.
// TODO This should return the actual source java.lang.DexFile object for the klass being loaded.
static art::ObjPtr<art::mirror::Object> FindSourceDexFileObject(
art::Thread* self, art::Handle<art::mirror::ClassLoader> loader)
REQUIRES_SHARED(art::Locks::mutator_lock_);
// Calls visitor on each java.lang.DexFile associated with the given loader. The visitor should
// return true to continue on to the next DexFile or false to stop iterating.
template<
typename Visitor>
static inline void VisitDexFileObjects(art::Thread* self,
art::Handle<art::mirror::ClassLoader> loader,
const Visitor& visitor)
REQUIRES_SHARED(art::Locks::mutator_lock_);
static art::ObjPtr<art::mirror::LongArray> GetDexFileCookie(
art::Handle<art::mirror::Object> java_dex_file) REQUIRES_SHARED(art::Locks::mutator_
lock_);
static art::ObjPtr<art::mirror::LongArray> AllocateNewDexFileCookie(
art::Thread* self,
art::Handle<art::mirror::LongArray> old_dex_file_cookie,
const art::DexFile* new_dex_file) REQUIRES_SHARED(art::Locks::mutator_lock_);
static void UpdateJavaDexFile(art::ObjPtr<art::mirror::Object> java_dex_file,
art::ObjPtr<art::mirror::LongArray> new_cookie)
REQUIRES(art::Roles::uninterruptible_) REQUIRES_SHARED(art::Locks::mutator_lock_);
private:
static art::ObjPtr<art::mirror::ObjectArray<art::mirror::Object>> GetDexElementList(
art::Thread* self, art::Handle<art::mirror::ClassLoader> loader)
REQUIRES_SHARED(art::Locks::mutator_lock_);
};
} // namespace openjdkjvmti
#endif // ART_OPENJDKJVMTI_TI_CLASS_LOADER_H_
